Počet záznamů: 1

Glycosides of arylnaphthalene lignans from Acanthus mollis having axial chirality

  1. 1.
    0327047 - MBU-M 2010 RIV GB eng J - Článek v odborném periodiku
    Řezanka, Tomáš - Řezanka, P. - Sigler, Karel
    Glycosides of arylnaphthalene lignans from Acanthus mollis having axial chirality.
    Phytochemistry. Roč. 70, č. 8 (2009), s. 1049-1054 ISSN 0031-9422
    Grant CEP: GA MŠk 1M06011
    Výzkumný záměr: CEZ:AV0Z50200510
    Klíčová slova: acanthus mollis * glycosides * cytotoxicity
    Kód oboru RIV: EE - Mikrobiologie, virologie
    Impakt faktor: 3.104, rok: 2009

    Glycosides of arylnaphthalene lignans having axial chirality were isolated from Acanthus mollis. Owing to the axial chirality, their structure, including absolute configuration, was determined by means of extensive spectroscopic data such as UV, IR, MS, 1D and 2D NMR spectra, and computational chiroptical methods. A compound, 20,4-dihydroxyretrohelioxanthin (20-hydroxy-justirumalin), has a structure containing two aromatic moieties with substituents hindering rotation about the biaryl axis. The aglycone was connected to a saccharide moiety linked at C-4 or C-20 and made up of one or four sugars (rhamnose or quinovose, and tetrasaccharide 4-O-b-D-xylopyranosyl-(100000-600)-O-[b-D-rhamnopyranosyl-(10000-300)]-O-b-Dapiofuranosyl-(10000-200)-O-b-D-glucopyranoside and quinovose)
    Trvalý link: http://hdl.handle.net/11104/0173952